US Patent No: 6,165,947

Number of patents in Portfolio can not be more than 2000

Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations

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Abstract

A chemical system and method to stop or minimize fluid loss during completion of wells penetrating hydrocarbon formations are provided. The inventions relates to formulating a highly stable crosslinked hydroxyethyl cellulose (HEC), control released viscosity reduction additives, and user friendly packaging. The chemical system contains a linear HEC polymer solution, a low solubility compound which slowly raises the fluid pH, a chelating agent which further increases the pH level beyond the equilibum achievable by the low solubility compound, a metal crosslinker which crosslinks HEC at elevated pH, a crosslink delaying agent which allows fluid viscosity to remain low until the fluid reaches the subterranean formation, and optionally an internal breaker. The chemical additives are packaged as an integrated pallet and transported to a field location which allows operators to conveniently mix them before pumping. There is also provided a dry granulated crosslinked polysaccharide for use as a fluid loss control agent.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Frank F Sugar Land, TX 28 756
Parlar, Mehmet Sugar Land, TX 38 448

Cited Art

Patent Info (Count) # Cites Year
 
UNION OIL COMPANY OF CALIFORNIA (4)
5,207,934 Crosslinked hydroxyethylcellulose and its uses 11 1992
5,335,733 Method for delaying gelation of a gelable polymer composition injected into a subterranean formation 15 1993
5,486,312 High temperature stable gels 34 1993
5,617,920 Method for modifying gelation time of organically crosslinked, aqueous gels 23 1994
 
SCHLUMBERGER TECHNOLOGY CORPORATION (2)
5,981,447 Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations 48 1997
5,979,557 Methods for limiting the inflow of formation water and for stimulating subterranean formations 210 1997
 
ALLIED PRODUCTS CORPORATION (1)
4,505,826 Prepackaged crosslinked polymer 12 1982
 
CONOCOPHILLIPS COMPANY (1)
5,547,025 Process for treating oil-bearing formation 14 1995
 
DOWELL SCHLUMBERGER INCORPORATED (1)
4,797,216 Delayed crosslinker composition 22 1986
 
HALLIBURTON COMPANY (1)
4,683,954 Composition and method of stimulating subterranean formations 83 1986
 
MARATHON OIL COMPANY (1)
5,421,411 Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate 17 1994

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (23)
6,823,939 Methods of treating subterranean zones penetrated by well bores 5 2002
7,531,484 Methods and solutions for removing HEC-based CFLA from a subterranean formation 0 2002
6,866,099 Methods of completing wells in unconsolidated subterranean zones 28 2003
7,114,570 Methods and compositions for stabilizing unconsolidated subterranean formations 24 2003
6,911,419 High temperature seawater-based cross-linked fracturing fluids and methods 5 2003
8,354,279 Methods of tracking fluids produced from various zones in a subterranean well 0 2004
7,541,318 On-the-fly preparation of proppant and its use in subterranean operations 7 2004
7,757,768 Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations 0 2004
7,883,740 Low-quality particulates and methods of making and using improved low-quality particulates 0 2004
7,448,451 Methods for controlling migration of particulates in a subterranean formation 3 2005
7,819,192 Consolidating agent emulsions and associated methods 6 2006
7,673,686 Method of stabilizing unconsolidated formation for sand control 0 2006
7,500,521 Methods of enhancing uniform placement of a resin in a subterranean formation 3 2006
7,934,557 Methods of completing wells for controlling water and particulate production 1 2007
8,017,561 Resin compositions and methods of using such resin compositions in subterranean applications 0 2007
8,071,511 Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove scale from wellbore tubulars or subsurface equipment 0 2007
7,712,531 Methods for controlling particulate migration 0 2007
7,571,767 High porosity fractures and methods of creating high porosity fractures 2 2007
7,766,099 Methods of drilling and consolidating subterranean formation particulates 3 2008
7,926,591 Aqueous-based emulsified consolidating agents suitable for use in drill-in applications 2 2009
7,762,329 Methods for servicing well bores with hardenable resin compositions 3 2009
8,167,045 Methods and compositions for stabilizing formation fines and sand 0 2009
7,963,330 Resin compositions and methods of using resin compositions to control proppant flow-back 0 2009
 
SCHLUMBERGER TECHNOLOGY CORPORATION (6)
6,569,814 Fluids and techniques for hydrocarbon well completion 152 2000
7,199,084 Concentrated suspensions 3 2002
6,938,693 Methods for controlling screenouts 30 2002
7,427,584 Treating composition 2 2002
7,972,998 Dry blend fracturing fluid additives 0 2004
7,304,019 Concentrated suspensions 2 2006
 
BAKER HUGHES INCORPORATED (3)
7,226,895 Drilling fluid systems for reducing circulation losses 5 2004
7,086,469 Increasing reaction efficiency of acetic acid 0 2004
7,507,692 Methods for reducing circulation loss during drilling operations 0 2006
 
TEXAS UNITED CHEMICAL COMPANY, LLC (3)
6,800,593 Hydrophilic polymer concentrates 20 2002
7,211,546 Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use 3 2004
7,214,647 Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use 2 2004
 
WEATHERFORD/LAMB, INC. (3)
6,810,960 Methods for increasing production from a wellbore 7 2002
7,320,365 Methods for increasing production from a wellbore 3 2004
7,813,935 System for evaluating over and underbalanced drilling operations 0 2005
 
BJ SERVICES COMPANY (2)
6,756,345 Well service composition and method 42 2001
7,067,459 Well stimulation compositions 5 2004
 
BENCHMARK RESEARCH AND TECHNOLOGY, INC. (1)
6,737,386 Aqueous based zirconium (IV) crosslinked guar fracturing fluid and a method of making and use therefor 15 2000
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
7,122,690 Process to prepare metal complex of N,N-bis(2-hydroxyethyl)glycine 0 2006
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
8,443,885 Consolidating agent emulsions and associated methods 0 2007